An electric cell has ____ terminals.

Correct! Wrong!

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An electric cell has two terminals, one positive and the other negative.

A dry matchstick is a ____.

Correct! Wrong!

A matchstick is made of wood which is an insulator. A dry matchstick is an insulator as it does not allow electricity to pass through it.

A glass bangle is an ____.

Correct! Wrong!

A glass bangle is an insulator as it does not allow electricity to pass through it.

Terminal voltage is drawn from a cell when the circuit containing the cell is open.

Correct! Wrong!

Terminal voltage is drawn from a cell when the circuit containing the cell is a closed circuit.

Electrical wires are usually made up of ____.

Correct! Wrong!

Electrical wires are usually made up of copper, as it is a good conductor of electricity.

In switches, the metal terminals are separated from each other by____.

Correct! Wrong!

In switches, the metal terminals are separated from each other by insulators.

Plastic, wood and bakelite are some good ____ of electricity.

Correct! Wrong!

Plastic, wood and bakelite are some good insulators of electricity.

While a cell is being charged, ____ energy is converted into ____energy.

Correct! Wrong!

While a cell is being charged, electrical energy is converted into chemical energy.

Air is an ____.

Correct! Wrong!

A bulb does not glow when there is only air in the gap between the drawing pins of the switch. This means that air is an insulator.

A bulb glows when a metal piece is used in the place of a switch in ON position in a closed circuit.

Correct! Wrong!

A bulb will glow when a metal piece is used in the place of a switch in ON position in a closed circuit because metal allows the electric current to pass through it.

Materials, which do not allow electricity to pass through them easily, are called ____ of electricity.

Correct! Wrong!

Materials that do not allow electricity to pass through them easily are called insulators of electricity.

Which of the following pairs consist of a conductor and an insulator of electricity?

Correct! Wrong!

Silver, copper, steel and gold are good conductors of electricity. Wood, wool and rubber are insulators of electricity. Hence, silver and rubber is the pair which consists of a conductor and an insulator of electricity.

The switch in a circuit can be placed anywhere in the circuit.

Correct! Wrong!

The switch in an electric circuit can be placed anywhere in the circuit.

Wood, plastic and glass are ____.

Correct! Wrong!

Wood, plastic and glass are insulators.

Our body is ____ of electricity.

Correct! Wrong!

Our body is a conductor of electricity.

All metals, alloys of metals and graphite are ____ of electricity.

Correct! Wrong!

All metals, alloys of metals and graphite are conductors.

Few resistors are connected in series to a battery and formed a closed electric circuit, then the current through each resistor in the closed electric circuit is same.

Correct! Wrong!

In series combination there is only one path for the flow of current as resistors are connected end to end. Hence, the same current flows through all the resistors in a series circuit.

The insulation on wires protects us from electric shocks.

Correct! Wrong!

The insulation on wires protects us from electric shocks.

Insulators allow charges to flow through them.

Correct! Wrong!

Insulators do not allow electric charges to flow through them.

Switches, electrical plugs and sockets are mainly made up of conducting materials.

Correct! Wrong!

Switches, electrical plugs and sockets are mainly made of insulators, only for connecting purpose conductors are used.

Which of the following pairs consist of two insulators?

Correct! Wrong!

Steel, copper and graphite are conductors. Wood, wool and air are insulators. Hence, air and wool is the pair containing two insulators.

Bakelite is an example of ____.

Correct! Wrong!

Bakelite is an insulator.

Metals are ____ of electricity.

Correct! Wrong!

Metals are conductors of electricity.

Which of the following is a good conductor?

Correct! Wrong!

A silver spoon is a good conductor as it allows the electric current to pass through it.

A currency coin is a ____.

Correct! Wrong!

A coin is a conductor because it allows the electric current to pass through it when connected in a circuit.

ICSE Class 9th Physics 8 - Electricity And Magnetism MCQs
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